Home / 1,281,918.84-1,769,269.98-772,621.80

Finding the Fourth Proportional to 1,281,918.84, 1,769,269.98 and 772,621.80

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Solution

The fourth proportional to 1,281,918.84, 1,769,269.98 and 772,621.80 is: 1,066,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,918.84 : 1,769,269.98 = 772,621.80 : x
  2. Step 2: Convert to fraction form
    1,281,918.84/1,769,269.98 = 772,621.80/x
  3. Step 3: Cross multiply
    1,281,918.84x = 1,769,269.98 × 772,621.80
  4. Step 4: Simplify right side
    1,281,918.84x = 1,366,976,556,633.56
  5. Step 5: Solve for x
    x = 1,366,976,556,633.56/1,281,918.84
  6. Step 6: Final answer
    x = 1,066,351.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.